$203 Cheap Korean Air flights Guam (GUM) to Busan (PUS)

Landing cheap one-way Korean Air flights from GUM to PUS from $203 on Expedia is a cinch --- just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares from $342 for your next exciting adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Scoring the best Korean Air deals from GUM to PUS often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. As an added bonus, you can pocket 17% on average by buying your tickets on a Sunday compared to a Friday, which is often the most expensive day to book.* It's smart to kick off your flight search about one month before your departure date.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

To find the earliest departures from GUM to PUS with Korean Air, filter your results by "Early Morning" and "Morning." Booking an early flight usually means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

With a 5-star airline rating, Korean Air is a favorite of many travelers departing from GUM to PUS. Plus, if you're a Korean Airlines Skypass and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.